A folding door is a type of door which opens by folding back in sections. They are usually to be found indoors. Folding doors were already known by the Romans as excavations in Pompeii have revealed.
Folding doors may also be known as accordion doors or accordion partitions. Folding doors are designed to provide quick and easy space division with moderate sound attenuation and a pleasing visual appearance. Accordion doors and partitions provide quick sight and sound division with a simple pull-and-latch operation. Accordion doors and partitions are available as single and paired openings. Curved track allows the partition to move around corners.